Contra Costa County property record for 421 Lassen Dr, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1964 |
| Square Footage | 1,227 sqft Living Area |
| Lot Size | 6,720 sqft (0.154 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $417,000 (2004) |
| Tax Bill | $7,525.00 (2025) |
| Primary APN | 155-193-022-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,227 sqft Living Area |
| 1st Floor | 1,227 sqft 1st Floor |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Lot Area | 6,720 sqft (0.154 acres) |
| Depth X Width | 102 ft x 64 ft Depth x Width |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 410 sqft Garage |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Street Address | 421 LASSEN DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4909 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 2194 LOT 39 |
| Legal Subdivision | MUIR MEADOWS |
| Legal Tract | 2194 |
| Legal Lot Number | 39 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1012 |
| Census Tract | 321101 |
Source: Contra Costa County records · APN 155-193-022-3
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 421 LASSEN DR, MARTINEZ, CA 94553-4909 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 19, 2004 · Amount on Record |
| Deed Sale | May 19, 2004 · Amount on Record |
| Deed Doc Number | 2004187286 |
| Last Transfer Date | Nov 26, 2014 |
| Transfer Doc | 0000218838 |
| Record Refreshed | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $604,722 (+2%) Land $406,053 Building $198,669 | |
| 2025 | $7,525.00 (+4.17%) Homeowner's exemption | $592,866 (+4.04%) Land $398,092 Building $194,774 |
| 2023 | $7,224.00 (+0.85%) Homeowner's exemption | $569,846 Land $382,635 Building $187,211 |
| 2022 | $7,163.00 |
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